[GIT PULL] dax fix for v5.2-rc8

[Dan Williams]

Hi Linus, please pull from:

  git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
tags/dax-fix-5.2-rc8

...to receive a single dax fix that has been soaking awaiting other
fixes under discussion to join it. As it is getting late in the cycle
lets proceed with this fix and save follow-on changes for
post-v5.3-rc1.

---

The following changes since commit f2c7c76c5d0a443053e94adb9f0918fa2fb85c3a:

  Linux 5.2-rc3 (2019-06-02 13:55:33 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
tags/dax-fix-5.2-rc8

for you to fetch changes up to 1571c029a2ff289683ddb0a32253850363bcb8a7:

  dax: Fix xarray entry association for mixed mappings (2019-06-06
22:18:49 -0700)

----------------------------------------------------------------
dax fix v5.2-rc8

- Ensure proper accounting page->index and page->mapping, needed for
  memory error handling, when downgrading a PMD mapping/entry to PTE size.

----------------------------------------------------------------
Jan Kara (1):
      dax: Fix xarray entry association for mixed mappings

 fs/dax.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)